5. Troubleshooting
Contents
1. 5 Troubleshooting If your Ray pex 5 does not seem to work properly it does not necessarily mean that the device does not work correctly Please first review the below checklist in order to exclude any user error or anatomic other peculiarities before contacting your dealer If the problem persists please contact either your local dealer or Dentsply Limited directly Problem Possible Cause Solution The device cannot be switched on with the ON OFF button Is the battery empty Is the battery placed correctly Does the button function correctly Check the battery low indicator If necessary charge the battery with the charger Open the battery compartment and by disconnecting and reconnecting check the battery Check the button by pressing it several times The device shuts off abruptly while measuring Is the battery empty Check the battery low indicator If necessary charge or change the battery No acoustic signal while measuring Is the volume set at mute Adjust the sound level Display not steady while measuring Is there contact between the lip clip and the oral mucosa Is the file clip soiled Is the file clip connected properly to the measuring file Ensure good contact between the mucosa and lip clip Place lip clip in the labial angle opposite to the tooth to be treated Clean the file clip with Ethanol Place the file cli2. ely remove remnants prior to measuring Rinse root canal with NaCl Dry the access cavity with a cotton pellet air blower If there is no parietal contact use larger ISO size for file Important exactly fitting file leads to precise results Rev 2 13 12 2006 Display reaction is over sensitive apex zoom is activated before the apex is reached Short circuit due to excess liquid irrigation solution saliva blood in the pulp chamber Is there a direct contact of the measuring file with the gingiva or gingival proliferations e g a fractured metal crown Is there a direct contact of the measuring file with metal restorations crown parapulpal post amalgam filling Direct electric current from metal to gingiva or to the parodontium creates a leakage current causing premature display of the foramen apicale Dry the access cavity with a cotton pellet air blower In case of excess blooding wait until it can be stopped For isolation adequate preparation filling use a rubber dam electro cauterise Carefully enlarge access cavity and isolate with flow composite Isolate the measuring file by placing 2 3 silicone stoppers on it or insert the measuring file in a small polyvinyl tube before use Rev 2 14 12 2006
3. p on the metal part of the file below the plastic handle Rev 2 12 12 2006 The electric circuit is not complete i e display does not accurately represent the file movement in the root canal Apex Zoom is not displayed Is the lip clip connected Are the cable and plugs connected correctly Is the measurement cable damaged e g torn Is the measuring file correctly attached to the file clip i e clamped onto the plastic handle Check the cable and plug connections Are they plugged in correctly Check visible damage to cable or plug Check if the file clip is clamped onto the metal part of the file below the plastic handle Test to control the function Moisten the palm of your hand and bring the file and the lip clip together on it to test the conductivity the display will react by showing the apex The electric circuit is not complete Is the root canal obliterated In the case of re treatment are old filling material residues blocking the root canal Is the root canal blocked by remnants of a medicated substance e g calcium hydroxide Is the root canal extremely dry Is ISO size of the measuring file too small for a large root canal Check the comparative x ray image for hints Catheterisation with ISO 06 08 file until working length Take a check x ray image and try to remove old root filling material remnants prior to measuring Complet
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